Page 46 - Estimator's Piping Man-Hour Manual 5E
P. 46
Section One-SHOP FABRICATION 29
45° WELDED NOZZLES
Labor For Cutting And Welding
Carbon Steel Material
NET MAN HOURS EACH
Standard Extra
Pipe Heavy Pipe SCHEDULE NUMBERS
Size &OD Sizes & OD Sizes
Ins. 3/8 "Thick 1/2" Thick 20 30 40 60 80 100 120 140 160
T _ _ _ _ _ _ _ _
1 2.4 2.5 _ _ -- 2.4 2.5 3.6
_ _
1-1/4 2.5 2.8 _ _ 2.5 -- 2.8 -- -- _ _ _ _ 4.1
_ _
1-1/2 2.8 3.1 -- 2.8 -- 3.1 4.7
_ _ _ _
--
2 2.9 3.6 _ _ -- 2.9 3.6 -- _ _ ,. 6.2
_ _
2-1/2 3.3 4.4 -- 3.3 -- 4. 4 -- 6.9
_ _ _ _
3 3.8 5.1 -- -- 3.8 _ _ 5.1 ._ 7.7
3-1/2 4.3 5.6 -- -- 4.3 5.6 -- -- -- --
_ _
4 4.8 6.6 -- 4.8 -- 6.6 8.2 .. 9.9
—
5 5.8 7.9 -- -- 5.8 .. 7.9 -- 10.2 -- 12.5
_ _
6 6.2 8.7 -- -- 6.2 -- 8.7 12.6 ~ _ 16.0
8 7.3 9.9 7.3 7.3 7.3 9.4 9.9 13.5 17.0 21.3 24.2
10 8.1 11.6 8.1 8.1 8.1 11.6 14.1 18.5 23.8 30.7 37.0
12 9.2 13.3 9.2 9.2 11.0 14.8 19.4 20.5 32.7 38.7 44.2
14 OD 10.5 15.4 10.5 10.5 13.0 18.1 25.5 32.5 38,9 43.7 54.4
16 OD 12.0 17.1 12.0 12.0 17.1 22.7 29.9 41.3 46.4 51,8 62.8
18 OD 13.1 18.3 13.1 17.0 21.6 29.1 34.4 50.1 55.6 60.1 78.6
20 OD 14.5 20.1 14.5 20.1 25.1 36.7 39.7 57.9 63.4 70.0 88.3
24 OD 15.9 22.5 15.9 28.2 30.1 46.8 47.5 73.6 79.1 89.6 103.3
Pipe Thickness: Wall thickness of the pipe used for the nozzle determines the man hours that
will apply. For nozzles of double extra strong pipe thickness, use Schedule 160 man hours.
Reinforcement; Man hours given above are for plain nozzles only. For use of Gusset plates,
etc.,as stiffeners.not for reinforcement,add 25% to the net man hours shown above. If re
inforcement is required and produced by building up the nozzle weld, or by the use of rein
forcing rings or saddles as specified use man hours for 45° reinforced nozzles.
Preheating: If specified or required by Codes, add for this operation. See man hours for pre
heating. The size and wall thickness of header (not the size of the nozzle) determines the
preheating man hours.
Stress Relieving: Stress relieving of welds in carbon steel material is required by the A. S. A.
Code for Pressure Piping, where the wall thickness is 3/4" or greater. The size and wall
thickness of the header determines the man hours to be used for stress relieving.
All pipe sizes shown below the ruled line are 3/4" or greater in wall thickness and must
be stress relieved. Where stress relieving is required an extra charge should be made.
See man hours for stress relieving.
For General Notes on welding, see 'pages 20 and "23.
